Fluid & Electrolytes

Fluid & Electrolytes

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Question Answer
What is Homeostasis dynamic process in which the body maintains balance by constantly adjusting to internal and external stimuli
What is Negative Feedback When the body reverses an original stimulus to regain homeostasis
What is Positive Feedback When the body enhances or intensifies an original stimulus
What is feedback The relaying of information to an appropriate organ or system to get a response
What is Hyponatremia Low sodium imbalance
What is an Electrolyte Substance that dissociates into ions when dissolved in water
What is an Ion An atom that acquired an electrical charge and bonding ability
Cation Positively charged ion
Anion Negatively charged ion
Overhydration Excess of water in the body
Edema Excess accumulation of fluid in interstitial spaces called "third space" fluid
Hypokalemia Low potassium levels
Hyperkalemia High Potassium levels
Isotonic Equal fluid flows in & out at the same rate
Hypertonic increased tension, shrinkage (high salt) , fluid flows out
Hypotonic Reduced tension, swelling, reduced concentration (dilute low salt) fluid flows into the cell
Permeability Ability of a membrane to allow molecules to pass
Freely Permeable membrane Allow easily transfer from intravascular fluid to interstitial fluid
Selectively Permeable Membrane allow only specific substances to pass through
Diffusion An area of high concentrations to an area of lower concentrations
Osmosis Diffusion of a pure solvent
Filtration Transport of H2O and dissolved materials through a membrane from an area of higher pressure to lower pressure
Pinocytosis Cell drinking
Phagocytosis Cell eating
Osmolarity Property of particles in a solution to dissociate into ions
Electroneutrality The balance of positive and negative charges

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